Jordanian King Abdullah II has warned US President Donald Trump against fulfilling his campaign pledge to move the US embassy in Israel from Tel Aviv to the occupied Jerusalem al-Quds.

Speaking in a meeting with Trump on the sidelines of the National Prayer Breakfast in Washington on Thursday, the Jordanian monarch stated that such a move would wreck prospects for the so-called two-state solution, and could worsen the Israeli-Palestinian conflict.

Trump, for his part, said he plans to recognize Jerusalem al-Quds as Israel’s capital and move the American embassy to the city.

On January 5, Jordanian Information Minister Mohammed Momani said that moving the US embassy from Tel Aviv to Jerusalem al-Quds would be a “red line” for Jordan and would “inflame the Islamic and Arab streets.”

He noted that the transfer of the US diplomatic mission could disrupt relations between the US and regional allies, including Jordan, stressing that Amman will make use of all available political and diplomatic avenues to prevent the relocation.

The Palestine Liberation Organization (PLO) has also warned the US against the relocation of its diplomatic mission in Israel, saying all American embassies in the Arab world would have to close in the face of popular Arab outrage that would follow such an action.

PLO Secretary General Sa’eb Erekat said in December that the potential move would deliver a death blow to any prospect of the resolution of the Arab-Israeli conflict, and would have his organization rescind all agreements with Tel Aviv.

Last September, Trump, who was the Republican presidential front-runner at the time, promised Israeli Prime Minister Benjamin Netanyahu that he would recognize Jerusalem al-Quds as Israel’s undivided capital if he emerged triumphant in the presidential election.